DE924171C - Adjustable pit punch - Google Patents
Adjustable pit punchInfo
- Publication number
- DE924171C DE924171C DEV549A DEV0000549A DE924171C DE 924171 C DE924171 C DE 924171C DE V549 A DEV549 A DE V549A DE V0000549 A DEV0000549 A DE V0000549A DE 924171 C DE924171 C DE 924171C
- Authority
- DE
- Germany
- Prior art keywords
- alloys
- aluminum
- adjustable pit
- punch
- alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 7
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 5
- 239000011651 chromium Substances 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 229910000952 Be alloy Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052790 beryllium Inorganic materials 0.000 claims description 3
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 3
- 239000003245 coal Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000005065 mining Methods 0.000 description 2
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
- E21D15/42—Telescopic props with parts held relatively to each other by friction or gripping with special parts to influence the friction
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/005—Props; Chocks, e.g. made of flexible containers filled with backfilling material characterised by the material
- E21D15/007—Props; Chocks, e.g. made of flexible containers filled with backfilling material characterised by the material spark-reducing
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
- E21D15/38—Telescopic props with parts held relatively to each other by friction or gripping with longitudinally-divided upper or lower prop parts, e.g. interfitting laminations
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
- E21D15/43—Details of wedges
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Forging (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Mechanical Operated Clutches (AREA)
Description
Verstellbarer Grubenstempel Grubenstempel werden vielfach aus Stahl hergestellt. Bei Schlag- oder Reibungsbeanspruchungen kann Funkenbildung auftreten, die bei Anwesenheit von Grubengasen Explosionsgefahr in sich schließt. Auch bei Verwendung von Leichtmetallen, die neuerdings aus Gründen der Gewichtsersparnis im Bergbau Eingang gefunden haben, ist die Möglichkeit der Funkenbildung dann nicht ausgeschlossen, wenn diejenigen Teile, die erhöhten Stoß- und Verschleißbeanspruchungen ausgesetzt sind, aus niedriglegiertem Stahl gefertigt sind. Dies gilt insbesondere bezüglich der für die Stempelschlösser verwendeten Keile, die durchweg aus Stahl bestehen. So ist z. B. ein Leichtmetallgrubenstempel bekannt, der aus einem rohrförmigen Außenstempel und einem in diesem gleitend geführten zweiteiligen Innenstempel besteht, wobei diese Teile alle aus Leichtmetall gefertigt sind, während zwischen die beiden Halbschalen des Innenstempels ein Klemmkeil getrieben wird, der die beiden Halbschalen gegen die Innenwandung des Außenstempels preßt. Dieser Klemmkeil besteht bei der bekannten Ausführung aus Stahl.Adjustable pit punches Pit punches are often made of steel manufactured. When exposed to impact or friction, sparks can occur, which involves the risk of explosion in the presence of mine gases. Also at Use of light metals, recently for reasons of weight saving have found their way into mining, there is then no possibility of spark formation excluded if those parts are exposed to increased impact and wear and tear are made of low-alloy steel. This is especially true regarding the wedges used for the stamp locks, which are all made of steel exist. So is z. B. a light metal pit stamp known, which consists of a tubular Consists of an outer stamp and a two-part inner stamp that is guided in a sliding manner, these parts are all made of light alloy while between the two Half-shells of the inner punch a wedge is driven, which the two half-shells presses against the inner wall of the outer punch. This clamping wedge exists at the known version made of steel.
Gegenstand der Erfindung ist demgegenüber ein verstellbarer Grubenstempel, bestehend aus durch Reibungsschluß verbundenem Ober- und Unterstempel, dessen Wesen darin erblickt wird, daß die Reibungskräften ausgesetzten Verbindungsflächen zwischen Ober- und/oder Unterstempel einerseits und Schloßteilen andererseits aus solchen Legierungen hergestellt sind, bei deren Zusammenwirken keine Funkenbildung auftritt. Hierfür eignen sich insbesondere hochvergütete Aluminiumlegierungen mit Gehalten an Zink bis zu io% und an Magnesium bis zu 5 % sowie hochfeste Kupfer- Legierungen, wie Aluminiumbronzen, oder besonders ausgehärtete Kupfer-Beryllium-Legierungen, ferner Nickellegierungen oder rostsichere Stähle, z. B. solche, deren Gesamtgehalt an Nickel und Chrom io0/a übersteigt. Die die Verbindungsflächen aufweisenden Teile können auch aus niedriglegiertem Stahl angefertigt sein, jedoch müssen dann die unter Reibung zusammenwirkenden Flächen mit einer der genannten Legie= rungen plattiert sein, wofür vorzugsweise die erwähnten Aluminium- oder hochfesten Kupferleg ierungen in Betracht kommen. Auch andere Oberflächenbehandlungen, die eine Funkenbildung ausschließen, wie z.B. Diffusionsverfahren, bei denen in die Oberflächenschicht bestimmte Legierungsbestandteile, wie Nickel, Chrom, Aluminium oder Kupfer, eingebracht werden, kommen hierfür in Betracht.The subject of the invention, on the other hand, is an adjustable pit punch, consisting of the upper and lower stamp connected by frictional engagement, its essence It is seen that the frictional forces exposed connecting surfaces between Upper and / or lower stamp on the one hand and lock parts on the other hand from such Alloys are made, when they interact, no sparking occurs. Highly tempered aluminum alloys with contents are particularly suitable for this of zinc up to 10% and of magnesium up to 5% as well as high-strength copper Alloys, such as aluminum bronzes or specially hardened copper-beryllium alloys, also nickel alloys or rust-proof steels, e.g. B. those whose total salary of nickel and chromium exceeds io0 / a. The parts having the connecting surfaces can also be made of low-alloy steel, but then the surfaces that interact with friction are plated with one of the aforementioned alloys be, for which preferably the mentioned aluminum or high-strength copper alloys be considered. Also other surface treatments that cause sparks exclude, such as diffusion processes, in which in the surface layer certain alloy components such as nickel, chromium, aluminum or copper are introduced are considered for this.
Die Anwendung der Erfindung sei an dem Beispiel eines sich unter dem Gebirgsdruck selbsttätig in der Länge einstellenden Bergwerksstempels aus Leichtmetall, dessen Schloß in den Schnittzeichnungen Abb. z und 2 veranschaulicht ist, erläutert. In dem rohrförmigen Außenstempel i, der am Schloßteil oben und unten mit je einem Stahlring :2 und 2' armiert ist, sind die Innenstempel 3 und 3' von halbkreisförmigem Querschnitt geführt. Durch die in dem Außenstempel i vorgesehenen Schlitze 4 wird ein Keil 5 eingetrieben, der die Innenstempel 3 und 3' spreizt und an die Innenwände des Außenstempels i anpreßt. Durch den hierbei entstehenden-Reibungsschluß wird die Bewegung der Innenstempel 3 gegenüber dem Außenstempel i gehemmt.The application of the invention is based on the example of one below Mountain pressure automatically adjusting the length of the mining stamp made of light metal, whose lock is illustrated in the sectional drawings Fig. Z and 2, explained. In the tubular outer ram i, the one on the lock part above and below with one each Steel ring: 2 and 2 'is reinforced, the inner punches 3 and 3' are of semicircular Cross-section guided. Through the slots 4 provided in the outer punch i a wedge 5 is driven in, which spreads the inner punches 3 and 3 'and adjoins the inner walls of the outer punch i. The resulting frictional engagement is the movement of the inner punch 3 with respect to the outer punch i is inhibited.
Der Außenstempel i und die Innenstempel 3 und 3' bestehen aus einer ausgehärteten A1 Cu Mg-Legierung. Besteht der Keil 5 wie üblich aus einem niedriglegierten Stahl, so können an den Reibungsflächen 6 und 6' zwischen Keil und Innenstempeln 3 und 3', z. B. bei plötzlich anwachsendem Gebirgsdruck, zündfähige Funken entstehen. Ist der Keil jedoch beispielsweise aus einer ausgehärteten Kupfer-Beryllium-Legierung mit etwa 2% Beryllium angefertigt, so ist die Gefahr der Funkenbildung beseitigt. Diese Legierung genügt infolge ihrer Festigkeit von i2o bis 130 kg/mm2 auch den mechanischen Beanspruchungen.The outer punch i and the inner punch 3 and 3 'consist of one hardened A1 Cu Mg alloy. If the wedge 5 consists, as usual, of a low-alloy one Steel, so can on the friction surfaces 6 and 6 'between the wedge and inner punches 3 and 3 ', e.g. B. with suddenly increasing rock pressure, ignitable sparks arise. However, if the wedge is made of a hardened copper-beryllium alloy, for example Made with about 2% beryllium, the risk of sparks is eliminated. Due to its strength of i2o to 130 kg / mm2, this alloy is also sufficient for the mechanical stresses.
Mit Rücksicht auf die Möglichkeit, daß unter besonders ungünstigen Verhältnissen auch die Stahlringe 2 und 2' eine Funkenbildung verursachen können, ist es vorteilhaft, auch diese Teile aus den genannten funkensicheren Werkstoffen herzustellen.With regard to the possibility that under particularly unfavorable Conditions, the steel rings 2 and 2 'can also cause sparks, it is advantageous to also make these parts from the aforementioned spark-proof materials to manufacture.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEV549A DE924171C (en) | 1950-02-14 | 1950-02-14 | Adjustable pit punch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEV549A DE924171C (en) | 1950-02-14 | 1950-02-14 | Adjustable pit punch |
Publications (1)
Publication Number | Publication Date |
---|---|
DE924171C true DE924171C (en) | 1955-06-20 |
Family
ID=7569162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEV549A Expired DE924171C (en) | 1950-02-14 | 1950-02-14 | Adjustable pit punch |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE924171C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1154641B (en) * | 1957-02-20 | 1963-09-19 | Kurt Dies Dr Ing | Use of thermosetting copper-titanium alloys for non-sparking tools |
DE1242172B (en) * | 1957-12-16 | 1967-06-15 | Karl Gerlach | Steel pit stamp |
CN114017075A (en) * | 2021-10-11 | 2022-02-08 | 煤炭科学研究总院 | Support column with rotatable footing |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1932279A (en) * | 1930-11-15 | 1933-10-24 | Pittsburgh Coal Company | Apparatus for forepoling |
GB510200A (en) * | 1937-03-01 | 1939-07-28 | Karl Daeves | Improvements in and relating to bearings made of iron or steel |
GB523071A (en) * | 1938-01-03 | 1940-07-04 | Degussa | Improvements in or relating to the cementation of metals and metal alloys with beryllium |
DE695105C (en) * | 1938-01-09 | 1940-08-16 | Heraeus Vacuumschmelze Akt Ges | Tool for processing magnesium and magnesia as well as materials with poor thermal conductivity |
DE803650C (en) * | 1948-10-02 | 1951-04-05 | Gutehoffnungshuette Oberhausen | Pit punch with galvanized upper punch |
-
1950
- 1950-02-14 DE DEV549A patent/DE924171C/en not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1932279A (en) * | 1930-11-15 | 1933-10-24 | Pittsburgh Coal Company | Apparatus for forepoling |
GB510200A (en) * | 1937-03-01 | 1939-07-28 | Karl Daeves | Improvements in and relating to bearings made of iron or steel |
GB523071A (en) * | 1938-01-03 | 1940-07-04 | Degussa | Improvements in or relating to the cementation of metals and metal alloys with beryllium |
DE695105C (en) * | 1938-01-09 | 1940-08-16 | Heraeus Vacuumschmelze Akt Ges | Tool for processing magnesium and magnesia as well as materials with poor thermal conductivity |
DE803650C (en) * | 1948-10-02 | 1951-04-05 | Gutehoffnungshuette Oberhausen | Pit punch with galvanized upper punch |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1154641B (en) * | 1957-02-20 | 1963-09-19 | Kurt Dies Dr Ing | Use of thermosetting copper-titanium alloys for non-sparking tools |
DE1242172B (en) * | 1957-12-16 | 1967-06-15 | Karl Gerlach | Steel pit stamp |
CN114017075A (en) * | 2021-10-11 | 2022-02-08 | 煤炭科学研究总院 | Support column with rotatable footing |
CN114017075B (en) * | 2021-10-11 | 2023-10-20 | 煤炭科学研究总院有限公司 | Support column with rotatable footing |
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